Patents by Inventor Hitoshi Arai

Hitoshi Arai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10086090
    Abstract: The present invention aims at providing a novel indocyanine compound solving problems of conventionally used indocyanine green, such as solubility in water or physiological saline, a synthesis method and a purification method thereof, and a diagnostic composition including the novel indocyanine compound. Further, provided are a method for evaluating biokinetics of the novel indocyanine compound and a device for measuring biokinetics, and a method and a device for visualizing circulation of fluid such as blood in a living body, which utilize the diagnostic composition. Also, found are a novel indocyanine compound in which a hydrophobic moiety in a near-infrared fluorescent indocyanine molecule is included in a cavity of a cyclic sugar chain cyclodextrin to cover the hydrophobic moiety in the indocyanine molecule with the glucose, and a synthesis method and a purification method thereof.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 2, 2018
    Assignees: NATIONAL UNIVERSITY CORPORATION MIE UNIVERSITY, NATIONAL UNIVERSITY CORPORATON NAGOYA UNIVERSITY
    Inventors: Katsunori Teranishi, Hitoshi Hirata, Tetsuya Arai
  • Patent number: 10087557
    Abstract: Provided is a method for producing carbon nanofibers having excellent conductivity, crystallinity and dispersibility. A method for producing carbon nanofibers, which uses an activated species mainly composed of cobalt as a catalyst, while using carbon monoxide as a carbon source. The catalyst is obtained by having a carrier, which is composed of an oxide having a specific surface area of 0.01-5 m2/g and containing magnesium, support 3-90% by mass of the activated species. By controlling the reaction temperature, the carbon monoxide partial pressure and the gas flow rate of the carbon monoxide, CNF having more excellent conductivity, crystallinity and dispersibility can be produced, thereby obtaining carbon nanofibers having excellent conductivity, crystallinity and dispersibility.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 2, 2018
    Assignee: DENKA COMPANY LIMITED
    Inventors: Hitoshi Kaneko, Toru Arai, Yoko Horikoshi, Ayumu Tsukamoto
  • Publication number: 20170351700
    Abstract: Each file storage apparatus of a plurality of file storage apparatuses stores a file system, and associates and stores paths of elements in the file system and archive destinations of the elements in an archive storage apparatus. When the file system is operated, each file storage apparatus transmits archive data of an element as an operation target, and operation information including operation details to the archive storage apparatus. The archive storage apparatus receives the archive data and the operation information, stores the archive data, and stores consistency information including the operation information and archive versions indicating a reception order of the operation information.
    Type: Application
    Filed: January 30, 2015
    Publication date: December 7, 2017
    Inventors: Masanori TAKATA, Akiyoshi TSUCHIYA, Hitoshi KAMEI, Hitoshi ARAI, Yoji NAKATANI
  • Publication number: 20170286447
    Abstract: A computer system for sharing objects comprises multiple front-end nodes and a back-end node for providing a namespace shared by the front-end nodes. A first front-end node that is any one of the front-end nodes manages local-lock counts for each of objects managed by the first front-end node. The local-lock count is the number of locks taken by operations to the objects including the directory and sub-objects thereof. Every time receiving a request for processing a target object from a client, the front-end node requests the back-end node to lock a parent directory of the target object if the parent directory has not been locked by the back-end node. The front-end node sends a response of the received request to the client regardless of whether or not the parent directory has been unlocked by the back-end node. If the local-lock count of the parent directory is zero, the first front-end node requests the back-end node to unlock the parent directory.
    Type: Application
    Filed: October 30, 2014
    Publication date: October 5, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Hieuhanh LE, Masanori TAKATA, Yoji NAKATANI, Hitoshi ARAI, Hitoshi KAMEI, Akiyoshi TSUCHIYA, Atsushi SUTOH
  • Patent number: 9721331
    Abstract: In the present invention, subband signals are obtained by performing multiresolution decomposition on image data by using a broad-sense pinwheel framelet that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and that has a degree. When an image is reconstructed by summing the obtained subband signals, the reconstructed image data is generated by attenuating or amplifying a subband signal corresponding to at least one of filters that have predetermined frequency characteristics and/or a predetermined orientation among the filters.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 1, 2017
    Assignee: NATIONAL INSTITUTE OF JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20170185605
    Abstract: A file server apparatus includes a memory which stores a program for controlling storage of data of a file in a storage apparatus, and a processor which executes the program. The processor manages a capacity of a storage area of an archive system in which a file stored in the storage apparatus is archived and manages a used capacity of the storage area. When receiving a write request of a file, the processor calculates a used capacity of the storage area of the archive system where a file related to the write request is archived and determines whether or not the file related to the write request can be archived in the archive system based on the capacity of the storage area of the archive system and the calculated used capacity. When determining that archiving cannot be performed, the processor notifies the host computer of an error.
    Type: Application
    Filed: September 10, 2014
    Publication date: June 29, 2017
    Inventors: Takuya HIGUCHI, Hitoshi ARAI, Sadahiro NAKAMURA, Nobuyuki SAIKA
  • Publication number: 20170068600
    Abstract: A file on file storage is archived as an object on object storage. In this case, a correspondence between UUID which is an identifier of the object and a path or an inode number which is an identifier of the file is recorded. This is referred to as correlation between the file and the object. However, because of changing of the path due to the renaming of the file, or changing of the inode number due to overwriting of the file, the correlation is likely to be lost. The invention provides a technique that restores the lost correlation and causes the correlation between the file and the object to be maintained.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 9, 2017
    Inventors: Hiromu HOTA, Masanori TAKATA, Hitoshi ARAI, Masaaki IWASAKI
  • Patent number: 9501241
    Abstract: A storage system comprises a second NAS storage apparatus comprising a processor and a storage medium and a third NAS storage apparatus for migrating an object managed by a first NAS storage apparatus. The processor stores path information of an object for which migration has started after including the path information in object management information, in the storage medium prior to migrating the object entity to the third NAS storage apparatus. The processor, after receiving the object entity from the first NAS storage apparatus and migrating the object entity to the third NAS storage apparatus, stores the third NAS storage apparatus path information to the object entity in the object management information, and reflects the management information in the third NAS storage apparatus.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 22, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Ogasawara, Hitoshi Arai, Homare Kanie
  • Patent number: 9426333
    Abstract: According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 23, 2016
    Assignee: Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9418452
    Abstract: The present invention obtains subband signals by performing a multiresolution decomposition by a wavelet frame with orientation selectivity or a filterbank with orientation selectivity that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations on image data, and, when an image is reconstructed by summing the obtained subband signals, generates reconstructed image data that creates a floating illusion by attenuating or amplifying a subband signal corresponding to at least one of detail filters with a predetermined orientation relative to a floating direction, in which an image is desired to be floated due to an illusion, among the detail filters.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: August 16, 2016
    Assignee: NATIONAL INSTITUTE OF JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9394129
    Abstract: Configuration with paired register rollers cooperative with a downstream head unit on a circulation route to register a print sheet, a feed route extending up to the register rollers, and feeder elements controllable for a downstream feed of print sheet along part of the feed route to the register rollers, the feeder elements being controllable for a change of feed speed or acceleration in accordance with information on a back tension of a print sheet on the circulation route.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: July 19, 2016
    Assignee: RISKO KAGAKU CORPORATION
    Inventors: Masashi Hara, Tatsunori Kaneko, Hitoshi Arai, Ryota Yamagishi
  • Patent number: 9374503
    Abstract: According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 21, 2016
    Assignee: Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20160140698
    Abstract: When obtaining subband signals by performing multiresolution decomposition on image data using a broad-sense pinwheel framelet or a pinwheel wavelet frame, having a degree, that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and acquiring processed image data by the subband signals in a decomposition phase of the multiresolution decomposition, or processed image data that has been reconstructed into an image by summing the subband signals in a synthesis phase of the multiresolution decomposition, the present invention performs attenuation or amplification of the subband signals in the decomposition phase of the multiresolution decomposition that correspond to at least one of the filters.
    Type: Application
    Filed: January 26, 2016
    Publication date: May 19, 2016
    Applicant: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9292910
    Abstract: When obtaining subband signals by performing multiresolution decomposition on image data using a broad-sense pinwheel framelet or a pinwheel wavelet frame, having a degree, that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and acquiring processed image data by the subband signals in a decomposition phase of the multiresolution decomposition, or processed image data that has been reconstructed into an image by summing the subband signals in a synthesis phase of the multiresolution decomposition, the present invention performs attenuation or amplification of the subband signals in the decomposition phase of the multiresolution decomposition that correspond to at least one of the filters.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: March 22, 2016
    Assignee: NATIONAL INSTITUTE OF JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hitoshi Arai, Shinobu Arai
  • Patent number: 9286318
    Abstract: A first edge server which is configured to provide a first home directory performs preventive processing of preventing a first file in a first home directory from overwriting a second file in a core space prior to coping an update of the first home directory to the core space. The second file is a file that has been updated in a second home directory and copied to the core space. The first file is a file that corresponds to the second file and that has been updated in the first home directory and has not been copied to the core space.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: March 15, 2016
    Assignee: HITACHI, LTD.
    Inventors: Kunihito Matsuki, Hitoshi Arai, Nobuyuki Saika, Masanori Takata
  • Publication number: 20150363904
    Abstract: According to an aspect of the present invention, processed image data in which distortion due to breast cancer is enhanced is generated by performing, on mammographic image data, image processing using a filter that relatively amplifies medium band components between high and low frequency bands and/or a filter that increases or reduces components having predetermined orientations. According to an aspect of the invention, a processed image for supporting breast cancer diagnosis is printed or recorded on a printing medium or a computer-readable recording medium and, in the processed image, band components between high and low frequency bands in a mammographic original image are relatively amplified and/or components having predetermined orientations in the mammographic original image are increased or reduced.
    Type: Application
    Filed: January 29, 2014
    Publication date: December 17, 2015
    Applicant: Japan Science and Technology Agency
    Inventors: Hitoshi ARAI, Takuya UEDA, Hiroko TSUNODA, Shinobu ARAI
  • Publication number: 20150326432
    Abstract: In a computer system having a plurality of local file servers present in a local system, and a remote file server present in a remote system and coupled to the plurality of local file servers, an environment configuration server is provided in the remote system. The environment configuration server identifies, from a storage device storing environment configuration information regarding an environment configuration for each of the plurality of local file servers, environment configuration information corresponding to a configuration-target local file server of the plurality of local file server, and transmits the identified environment configuration information to the configuration-target local file server.
    Type: Application
    Filed: January 24, 2013
    Publication date: November 12, 2015
    Inventors: Satoshi FUJIE, Nobuyuki SAIKA, Hitoshi ARAI
  • Publication number: 20150264222
    Abstract: According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
    Type: Application
    Filed: September 30, 2013
    Publication date: September 17, 2015
    Applicant: Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai
  • Publication number: 20150227550
    Abstract: A first edge server which is configured to provide a first home directory performs preventive processing of preventing a first file in a first home directory from overwriting a second file in a core space prior to coping an update of the first home directory to the core space. The second file is a file that has been updated in a second home directory and copied to the core space. The first file is a file that corresponds to the second file and that has been updated in the first home directory and has not been copied to the core space.
    Type: Application
    Filed: April 22, 2013
    Publication date: August 13, 2015
    Inventors: Kunihito Matsuki, Hitoshi Arai, Nobuyuki Saika, Masanori Takata
  • Publication number: 20150131906
    Abstract: When obtaining subband signals by performing multiresolution decomposition on image data using a broad-sense pinwheel framelet or a pinwheel wavelet frame, having a degree, that is a set of an approximate filter with no orientation and a plurality of detail filters with respective orientations, and acquiring processed image data by the subband signals in a decomposition phase of the multiresolution decomposition, or processed image data that has been reconstructed into an image by summing the subband signals in a synthesis phase of the multiresolution decomposition, the present invention performs attenuation or amplification of the subband signals in the decomposition phase of the multiresolution decomposition that correspond to at least one of the filters.
    Type: Application
    Filed: May 13, 2013
    Publication date: May 14, 2015
    Applicant: National Institute of Japan Science and Technology Agency
    Inventors: Hitoshi Arai, Shinobu Arai